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Python Functional Python Functional Workhorses Map

Stefan Vaziri
Stefan Vaziri
17,453 Points
Posted by Stefan Vaziri
Stefan Vaziri
17,453 Points

Don't know what I'm doing wrong here...

Can someone tell me what I'm doing wrong here? Can't seem to figure it out.

maps.py 
backwards = [
    'tac',
    'esuoheerT',
    'htenneK',
    [5, 4, 3, 2, 1],
]

def reverse(item1):
     return list(reversed(item1))

forwards = map(reverse, backwards)

1 Answer

Stefan Vaziri
Stefan Vaziri
17,453 Points
Stefan Vaziri
Stefan Vaziri
17,453 Points

I figured it out by doing return item1[::-1] but still not sure why the above doesn't work...I thought reversed() does the same things as [::-1]

Chris Freeman
Chris Freeman
Treehouse Moderator 68,441 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,441 Points

Changed to answer.

reversed() doesn't work for strings:

information.
>>> list(reversed("esuoheerT"))
['T', 'r', 'e', 'e', 'h', 'o', 'u', 's', 'e']
>>> "esuoheerT"[::-1]
'Treehouse'
Stefan Vaziri
Stefan Vaziri
17,453 Points
Stefan Vaziri
Stefan Vaziri
17,453 Points

Ah I see. Thank you Chris.